Dear All Sometimes postgres.exe will thrash one of the cores and won't stop until I kill the process. I know it's the statistics collector as I get this message when I kill the process: "statistics collector process (PID 172) exited with exit code 1" Nothing other than this app is accessing my PG server. I'm developing a web mapping application which retrieves point data via multiple statements like this: select xmlelement(name "amr:mapFeatureType", xmlattributes(featuretype as name),xmlagg( xmlelement(name "amr:mapFeature", xmlforest(y(the_geom) as "amr:latitude", x(the_geom) as "amr:longitude", lable as "amr:description")) )) from (select featuretype, the_geom, lable from poi WHERE the_geom && setsrid( 'BOX3D(-5.625 52.482780222078205,0 55.7765730186677)'::box3d, 4326) and featureclass = 'layer3' limit 15) as ss group by ss.featuretype I don't even know why this process would run anyway, as I haven't updated the database for weeks (it's only a dummy dataset). I'm also getting hundreds of these messages in a few hours work: 2008-05-08 09:22:56 BST LOG: loaded library "$libdir/plugins/plugin_debugger.dll" 2008-05-08 09:22:56 BST LOG: loaded library "$libdir/plugins/plugin_debugger.dll" Why would it load it twice within the same second? Select version() - "PostgreSQL 8.3.1, compiled by Visual C++ build 1400" Machine - XP sp2, core 2 duo 7250 laptop The only non 'out of the box' setting I've changed in postgresql.conf is: log_statement = 'all' Any ideas why this might be happening, and how I can stop it? Thanks, Will T